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Home >> Product Center >> Needle Bearings      
Welcome new and old customers to choose our products!

Please contact STILBearing for more information on any of the below or about sizes not listed as new sizes are constatly becoming available

Tel: 86-510-82726643
Fax: 86-510-68930187
E-mail: stlpt@vip.163.com
    Needle Roller Bearings-NA 49 RS,NA 49 2RS Series with Inner Ring
NA 49 RS, NA 49 2RS (25127 byte)
Shaft Diameter Bearing desigantion Mass App. Boundary dimensions Basic load rating Limiting speed (Grease)
Sealed on one side Sealed on two sides d F D C B Cr Dynamic Cor Static
mm g mm N N rpm
10 NA 4900 RS NA 4900.2 RS 24.5 10 14 22 13 14 4 560 4 660 13 000
12 NA 4901 RS NA 4901.2 RS 27.5 12 16 24 13 14 4 950 5 800 12 000
15 NA 4902 RS NA 4902.2 RS 37 15 20 28 13 14 5 980 9 500 10 000
17 NA 4903 RS NA 4903.2 RS 40 17 22 30 13 14 6 050 10 100 9 000
20 NA 4904 RS NA 4904.2 RS 80 20 25 37 17 18 14 900 17 500 7 500
25 NA 4905 RS NA 4905.2 RS 89.5 25 30 42 17 18 16 300 21 500 6 500
30 NA 4906 RS NA 4906.2 RS 104 30 35 47 17 18 20 050 24 900 5 500
35 NA 4907 RS NA 4907.2 RS 175 35 42 55 20 21 22 500 37 000 4 800
40 NA 4908 RS NA 4908.2 RS 252 40 48 62 22 23 33 050 50 900 4 200
45 NA 4909 RS NA 4909.2 RS 290 45 52 68 22 23 34 800 56 800 3 900
50 NA 4910 RS NA 4909.2 RS 295 50 72 22 23 23 37 800 61 500 3 500